Unicode C

Example: Crypt2.ClearEncryptCerts method

Demonstrates how to call the ClearEncryptCerts method. Unicode C

#include <C_CkCrypt2W.h>
#include <C_CkCertW.h>
#include <C_CkBinDataW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCrypt2W crypt;
    HCkCertW cert1;
    HCkCertW cert2;
    HCkCertW cert3;
    HCkBinDataW bd;
    HCkCertW cert4;
    HCkCertW cert5;

    success = FALSE;

    crypt = CkCrypt2W_Create();

    //  Tell the crypt object to use 3 certificates.
    //  Do this by calling AddEncryptCert for each certificate.

    cert1 = CkCertW_Create();
    //  ...
    //  Load the cert from a source such as a .pfx/.p12 file, smart card, USB token, Apple keychain, Windows certificate store, etc.
    //  ...
    CkCrypt2W_AddEncryptCert(crypt,cert1);

    cert2 = CkCertW_Create();
    //  ...
    CkCrypt2W_AddEncryptCert(crypt,cert2);

    cert3 = CkCertW_Create();
    //  ...
    CkCrypt2W_AddEncryptCert(crypt,cert3);

    //  Params for public-key encryption to create PKCS7 enveloped-data
    CkCrypt2W_putCryptAlgorithm(crypt,L"pki");
    CkCrypt2W_putPkcs7CryptAlg(crypt,L"aes");
    CkCrypt2W_putKeyLength(crypt,256);
    CkCrypt2W_putOaepHash(crypt,L"sha256");
    CkCrypt2W_putOaepPadding(crypt,TRUE);

    bd = CkBinDataW_Create();
    //  ...
    success = CkCrypt2W_EncryptBd(crypt,bd);

    //  Let's say we now want to encrypt something else with different certs..
    //  First clear the encryption certs.
    CkCrypt2W_ClearEncryptCerts(crypt);

    cert4 = CkCertW_Create();
    //  ...
    CkCrypt2W_AddEncryptCert(crypt,cert4);

    cert5 = CkCertW_Create();
    //  ...
    CkCrypt2W_AddEncryptCert(crypt,cert5);

    //  ...
    //  ...

    //  Encrypt using cert4 and cert5.
    success = CkCrypt2W_EncryptBd(crypt,bd);


    CkCrypt2W_Dispose(crypt);
    CkCertW_Dispose(cert1);
    CkCertW_Dispose(cert2);
    CkCertW_Dispose(cert3);
    CkBinDataW_Dispose(bd);
    CkCertW_Dispose(cert4);
    CkCertW_Dispose(cert5);

    }